78% represents the percentage of _____ in the air.
Understand the Problem
The question is asking to identify the gas that constitutes 78% of the air we breathe, based on a pie chart that shows the composition of air. The correct option to fill in the blank must reflect the gas representing this percentage.
Answer
nitrogen gas
The final answer is nitrogen gas.
Answer for screen readers
The final answer is nitrogen gas.
More Information
Nitrogen is the most abundant gas in Earth's atmosphere, constituting about 78% of the air we breathe. It is an essential component of the nitrogen cycle and is critical for plant growth.
Tips
A common mistake is to confuse the percentage of nitrogen with that of oxygen, which is approximately 21%.
Sources
- What's in the Air? - UCAR Center for Science Education - scied.ucar.edu
- The amount of ______ in the air is 78%. - Turito - turito.com
- Which gas makes up 78% of the molecules in the atmosphere? - quora.com
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